If the abstracts were actually true and someone implemented an actually error corrected qubit with lifetime 320ms, I guess it should be trivial to apply a few t

If the abstracts were actually true and someone implemented an actually error corrected qubit with lifetime 320ms, I guess it should be trivial to apply a few thousand operations to a mere 4 qubits and factor the number 15. You're at Yale and presumably going to Berkeley later: maybe you should try to do this. Sounds to me like you could build a whole career on meeting the challenges involved in factoring the number 15. Edit add: since you continue to add material, I will continue to add comments; half the text of the Blatt paper is verbiage making excuses for the fact they dropped the operations they knew were not needed to factor 15, just like the NMR quantum computers in the 90s did. In fact, this one is worse than 90s results.